{"location":{"city":"Kamieniec","voivodeship":"Kujawsko-Pomorskie","community":"Topólka","postalCode":"87-875","latitude":52.4655,"longitude":18.6842,"elevation":102},"climateZone":3,"standardOutsideTemp":-20,"annualMeanTemp":9.1,"monthly":[{"month":1,"outsideTemp":-1.12,"heatingDays":31,"degreeDayNum":592,"solarIrradianceKwhM2":22.7,"windSpeedAvg":5.83,"relativeHumidity":84.6,"outsideTempOnHeatingDays":-1.12},{"month":2,"outsideTemp":0,"heatingDays":28,"degreeDayNum":508,"solarIrradianceKwhM2":40.6,"windSpeedAvg":5.76,"relativeHumidity":81.5,"outsideTempOnHeatingDays":0},{"month":3,"outsideTemp":3.2,"heatingDays":31,"degreeDayNum":458,"solarIrradianceKwhM2":84,"windSpeedAvg":5.75,"relativeHumidity":76.8,"outsideTempOnHeatingDays":3.2},{"month":4,"outsideTemp":8.75,"heatingDays":29,"degreeDayNum":278,"solarIrradianceKwhM2":129.5,"windSpeedAvg":5.24,"relativeHumidity":71,"outsideTempOnHeatingDays":8.58},{"month":5,"outsideTemp":13.8,"heatingDays":26,"degreeDayNum":138,"solarIrradianceKwhM2":161.5,"windSpeedAvg":5.07,"relativeHumidity":70.1,"outsideTempOnHeatingDays":12.82},{"month":6,"outsideTemp":17.24,"heatingDays":17,"degreeDayNum":51,"solarIrradianceKwhM2":164.6,"windSpeedAvg":4.99,"relativeHumidity":69.9,"outsideTempOnHeatingDays":15.11},{"month":7,"outsideTemp":19.37,"heatingDays":11,"degreeDayNum":19,"solarIrradianceKwhM2":162.3,"windSpeedAvg":4.87,"relativeHumidity":70.5,"outsideTempOnHeatingDays":16.25},{"month":8,"outsideTemp":19.13,"heatingDays":11,"degreeDayNum":21,"solarIrradianceKwhM2":139.7,"windSpeedAvg":4.67,"relativeHumidity":69.9,"outsideTempOnHeatingDays":16.13},{"month":9,"outsideTemp":14.44,"heatingDays":26,"degreeDayNum":113,"solarIrradianceKwhM2":90.1,"windSpeedAvg":5.06,"relativeHumidity":75.2,"outsideTempOnHeatingDays":13.65},{"month":10,"outsideTemp":9.27,"heatingDays":30,"degreeDayNum":270,"solarIrradianceKwhM2":54.1,"windSpeedAvg":5.34,"relativeHumidity":80.7,"outsideTempOnHeatingDays":9.25},{"month":11,"outsideTemp":4.34,"heatingDays":30,"degreeDayNum":409,"solarIrradianceKwhM2":25.3,"windSpeedAvg":5.41,"relativeHumidity":86.4,"outsideTempOnHeatingDays":4.34},{"month":12,"outsideTemp":0.47,"heatingDays":31,"degreeDayNum":543,"solarIrradianceKwhM2":16.6,"windSpeedAvg":5.64,"relativeHumidity":86,"outsideTempOnHeatingDays":0.47}],"groundTemp1m":9.41,"groundTemp2m":9.41,"solarIrradianceKwhM2Year":1091.1,"windSpeedAvg":5.3,"relativeHumidityAvg":76.9,"suitability":{"score":70,"rating":"good","color":"lime","estimatedScop":4.1,"notes":["Wysokie nasłonecznienie — bardzo dobre warunki dla hybrydy pompa ciepła + PV.","Wysoka średnia prędkość wiatru (5.3 m/s) — większe straty przez infiltrację."]},"_meta":{"source":"OPEN_METEO_ERA5_LAND_1991_2020","sourceLabel":"ERA5-Land Reanalysis (1991–2020)","fetchedAt":"2026-05-19T12:11:18.116Z","attribution":"Weather data by Open-Meteo.com (CC BY 4.0)","legalRef":"PN-B-02403:1982 (climateZone, standardOutsideTemp)","apiVersion":"v1"}}